There were Caracalla's from Tyra with Nike reverses, such as:
https://www.acsearch.info/search.html?id=1515627Perhaps yours may be one with an obverse die produced by an engraver who knew what the young emperor actually looked like, or who had Imperial coins to reference?
By the way, safe to assume the obverse has some double striking going on? Not jugate busts, is it?
Edited by Kamnaskires
05/16/2020 09:47 am